4 research outputs found
Intelligent system for the diagnosis of heart disease using data mining and fuzzy modeling
The purpose of this research is to design an intelligent system for diagnosis of heart disease using data mining and fuzzy modeling. The research has been carried out on using the heart disease dataset given by the University of California Machine Learning repository.Master of Science (Biomedical Engineering
ACCOUNTING FOR NON-IDENTICAL DATA IN BIOIMAGE INFORMATICS
Ph.DDOCTOR OF PHILOSOPHY (FOS
Beta-Hemolytic Bacteria Selectively Trigger Liposome Lysis, Enabling Rapid and Accurate Pathogen Detection
For
more than a century, blood agar plates have been the only test
for beta-hemolysis. Although blood agar cultures are highly predictive
for bacterial pathogens, they are too slow to yield actionable information.
Here, we show that beta-hemolytic pathogens are able to lyse and release
fluorophores encapsulated in sterically stabilized liposomes whereas
alpha and gamma-hemolytic bacteria have no effect. By analyzing fluorescence
kinetics, beta-hemolytic colonies cultured on agar could be distinguished
in real time with 100% accuracy within 6 h. Additionally, end point
analysis based on fluorescence intensity and machine-extracted textural
features could discriminate between beta-hemolytic and cocultured
control colonies with 99% accuracy. In broth cultures, beta-hemolytic
bacteria were detectable in under an hour while control bacteria remained
negative even the next day. This strategy, called beta-hemolysis triggered-release
assay (BETA) has the potential to enable the same-day detection of
beta-hemolysis with single-cell sensitivity and high accuracy